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The CO₂ absorption spectrum in the 2.3 µm transparency window by high sensitivity CRDS: (II) Self-absorption continuum

Campargue, A.; Vasilchenko, S.; Mondelain, D. +2 more

The CO₂ absorption continuum near 2.3 µm is determined for a series of sub atmospheric pressures (250-750 Torr) by high sensitivity Cavity Ring Down Spectroscopy. An experimental procedure consisting in injecting successively a gas flow of CO₂ and synthetic air, keeping constant the gas pressure in the CRDS cell, has be…